Japan says U.N. experts' call to protect nuclear clean-up workers is 'regrettable'

TOKYO (Reuters) - Japan on Friday described as "extremely regrettable" a call by U.N. human rights experts for greater protection of workers cleaning up its damaged Fukushima Daiichi nuclear power plant, and said it had notified U.N. officials of its reaction.

Tepco, the utility that owns the plant hit by a tsunami in 2011 that set off meltdowns, has been widely criticised for its treatment of workers and its handling of the cleanup, which is expected to take decades.